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一水合硫酸氢钠催化合成环己酮二乙缩酮的工艺研究

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摘要 以环己酮和无水乙醇为原料,无水K2CO3为吸水剂,Na HSO4·H2O为催化剂,催化合成环己酮二乙缩酮。研究了环己酮与无水乙醇物质量比、回流反应时间、催化剂用量等因素对环己酮二乙缩酮收率的影响,通过IR和1HNMR鉴定了其结构。结果表明,Na HSO4·H2O具有良好的催化活性,较佳工艺条件为:环己酮13.95 g(0.15 mol),n(环己酮)∶n(乙醇)∶n(Na HSO4·H2O)=1∶2.7∶0.067,回流反应时间2 h;该工艺条件下环己酮二乙缩酮的收率在92%以上。
出处 《江苏农业科学》 北大核心 2014年第12期369-370,共2页 Jiangsu Agricultural Sciences
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